Bug#365780: gcc-4.1: FTBFS on amd64, sparc with "configure.in:2177: error: possibly undefined macro: AS_FOR_TARGET"

[ludovic@ludovic-brenta.org]

Package: gcc-4.1
Version: 4.1.0-2
Severity: serious

The patch ada-link-lib.dpatch changes the top-level configure.in, then
calls autoconf to regenerate configure.  Autoconf then bails out with:

configure.in:2177: error: possibly undefined macro: AS_FOR_TARGET
      If this token and others are legitimate, please use m4_pattern_allow.
      See the Autoconf documentation.
make: *** [stamps/02-patch-stamp-ada-link-lib] Error 1

I'm not sure what is happening.  One thing is for sure:
ada-link-lib.dpatch does not change anything related to AS_FOR_TARGET,
so the problem may be that we call the wrong version of autoconf.
(The top-level configure.in requires autoconf2.13 while the ones in
subdirectories require more recent versions.  Oh, I hate autoconf.).

In any case, I think that a quick and easy fix would be to revive the
corresponding patch to configure (in ada-link-lib.dpatch), instead of
calling autoconf.

-- 
Ludovic Brenta.